Run scripts on one more hosts using SSH

run_script_over_ssh.sh

#!/bin/bash
set -e

# Ensure we have at least two arguments: the script file and at least one host
if [ "$#" -lt 2 ]; then
    echo "Usage: $0 <script_file> <host1> <host2> ... <hostN>"
    exit 1
fi

# Get script file and hosts from arguments
SCRIPT_FILE="$1"
shift
HOSTS=("$@")

# Check that script file exists
if [ ! -f "$SCRIPT_FILE" ]; then
    echo "Script file $SCRIPT_FILE does not exist"
    exit 1
fi

# Read script to run from a file
SCRIPT=$(cat "$SCRIPT_FILE")

# Iterate over each host
for HOST in "${HOSTS[@]}"; do
    echo "[$(date)] Deploying to $HOST"
    
    # Check SSH connectivity
    if ! ssh -o BatchMode=yes -o ConnectTimeout=5 $HOST echo "SSH connected" > /dev/null 2>&1; then
        echo "[$(date)] Cannot connect to $HOST. Skipping..."
        continue
    fi

    # Run script on remote host
    if ssh -o BatchMode=yes $HOST "$SCRIPT"; then
        echo "[$(date)] Successfully deployed to $HOST"
    else
        echo "[$(date)] Deployment to $HOST failed"
    fi
done

echo "[$(date)] Deployment complete"